Ted Fried's MicroCore Labs Projects - FPGA CPU cores and emulators for the 8088, 8086, 8051, 6502, 68000, Z80, Risc-V, and also Typewriter and EPROM Emulator projects. MCL51, MCL64, MCL65, MCL65+, MCL68, MCL86, MCL86+, MCL86jr, MCLR5, MCLZ8, MCL6809, XTMax, MCL8080+

Byte-aligned, efficient lossless packer that is optimized for fast decompression on 8-bit micros

Free open-source compressor for apLib with 5-7% better ratios

A curated list of awesome Tandy Color Computer development tools, software and resources.

SB-Assembler Version 3 - Cross Macro Assembler

Emulators for 8080/8085, 8086/8088, Z80, 6502 and TMS1000-family CPUs

C development system for (Nitr)OS9/6x09, with source

6809 and OS-9 emulator in Java

Vectrex Forth is a port of Brad Rodriguez' CamelForth/6809 to the Vectrex video game console, with an added Forth to Vectrex BIOS API for easy programming.

Motorola 6809e 8-bit CPU emulator

An emulation of the MC6809 cpu

Collection of eight-bit processor emulators (for various projects)

A BASIC compiler for the TRS80 Color Computer

A 6809 assembler, simulator and debugger written in rust.

Tandy Color Computer Development Libraries

A Motorola 6809 and Hitachi 6309 CPU decompressor for the ZX0 data compression format by Einar Saukas.

Color BASIC, improved.

A simple multitasking OS for the 6809

Robotron:2084 (1982) by Eugene Jarvis

OMEN Kilo / 6809-based single board computer